Undid "Immortal" name change

Fixed json errors
Added Korean and Czech flags

android/assets/jsons/Translations/Buildings.json

@@ -540,7 +540,7 @@
 		Simplified_Chinese:"组建骑乘单位时产能积累速率+15%"
 		Polish:"+15% do produkcji jednostek kawalerii"
 		Russian:"+15% Производство при постройке конных юнитов в данном городе"
-		Czech:""+15% produkce při výstavbě jízdních jednotek v tomto městě
+		Czech:"+15% produkce při výstavbě jízdních jednotek v tomto městě"
 }
 
 	"Circus Maximus":{

android/assets/jsons/Translations/Other.json

@@ -1115,7 +1115,7 @@
 		French:"Points de personnage illustre"
 		Portuguese:"Pontos de grandes pessoas"
 		Russian:"Очки великих людей"
-		Czech:"Body Velké osobnosti
+		Czech:"Body Velké osobnosti"
 }
 
 	"Current points":{
@@ -1889,7 +1889,7 @@
 		Russian:"Вы победили, завоевав всех!"
 		Simplified_Chinese:"恭喜！你赢得了征服胜利！"
 		Portuguese:"Você ganhou uma vitória de dominação!",
-		Czech:"Dosáhli jste vítězství díky dominanci!
+		Czech:"Dosáhli jste vítězství díky dominanci!"
 }
 // TODO (4)
 	"You have achieved victory through the awesome power of your Culture. Your civilization's greatness - the magnificence of its monuments and the power of its artists - have astounded the world! Poets will honor you as long as beauty brings gladness to a weary heart.":{

android/assets/jsons/Translations/Units,Promotions.json

@@ -2080,7 +2080,7 @@
 		Simplified_Chinese:"治疗I"
 		French:"Médecin"
 		Russian:"Медик"
-		Czech:"Zdravotník I
+		Czech:"Zdravotník I"
 }
 
 	"This unit and all others in adjacent tiles heal 5 additional HP per turn":{

android/assets/jsons/Units.json

@@ -243,7 +243,7 @@
 		attackSound:"metalhit"
 	},
 	{
-		name:"Persian Immortal",
+		name:"Immortal",
 		replaces:"Spearman",
 		uniqueTo:"Persia",
 		unitType:"Melee",